The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2002
Filed:
Feb. 23, 2000
Takehiro Hayashi, Hyogo, JP;
Bando Chemical Industries, Ltd., Hyogo, JP;
Abstract
A V-ribbed belt B has bottom and back faces each provided with a plurality of ribs of approximately trapezoidal section which extend in parallel with each other along the belt length. In order to suppressing a discrepancy between respective speed ratios of revolution transmitted from one pulley to the other in normal and reversed positions of the belt B, the belt B is adapted to have a difference of 2 mm or less between a bottom-face-side belt length when the bottom-face-side ribs of the belt B are faced on an inner peripheral side thereof and a back-face-side belt length when the back-face-side ribs of the belt B are faced on the inner peripheral side thereof. The center of a cord embedded inside of the belt B is thereby positioned substantially in the middle of the belt thickness so that the cord has equal distances from both the bottom face and back face of the belt B even if the belt B is in either position.